Crazy Taxi 3: High Roller - Cheat mode

Disable arrow indicators:
Highlight a driver, then hold White and press A at the character selection screen. The message "No Arrows" will appear to confirm correct code entry.

Disable destination indicator:
Highlight a driver, then hold Black and press A at the character selection screen. The message "No Destination Markers" will appear to confirm correct code entry.

Double money:
Drive around the West Coast until you find a man who wants to go to the FILA store. Make sure that he gets in on the right side of your taxi. Drive him to the store and turn so that the right side of your car is lined up with a window at the front. If done correctly, when he gets out, he will automatically teleport into the store and you will get double money.

Expert mode:
Highlight a driver, then hold White Black and press A at the character selection screen. The message "Expert Mode" will appear to confirm correct code entry. No destination or arrow indicators will appear in this mode.

Glitter Oasis: Loch Ness monster
Go to the water near the dam and look around for a while. You will see the Loch Ness monster.

Shortcut:
Press White to view a blue arrow that shows you the faster, shorter way to drop off passengers.

Toggle headlights:
Click the Right Analog-stick to turn your headlights on and off.

Twister:
Hold Gas A B then hold the Left Analog-stick Right to do a tornado. Note: It looks more like a tornado when done in the water.

West Coast: Killer whale
Go to the beach and you will see a killer whale.

All drivers:
Successfully complete Crazy X level S-S.

Another Day mode:
Successfully complete Crazy X level 3..

Backwards Crazy Dash:
While driving in reverse, press R A and you will do a Crazy Dash backwards.

Blue Arrow:
During gameplay, press the white button to toggle the arrow blue or green.

Bonus courses:
Successfully complete Crazy X level 1 to unlock the West Coast, Glitter Oasis, and Small Apple courses.

Bonus taxis:
Successfully complete Crazy X level 2 to unlock the bike, stroller, and carriage taxis.

Surviving the crazy-x football:
To help you beat the Crazy X football part jump over the big semi's and the big crowd of small cars. after you avoid the semi's it's just crusin' for you.
Jump is the Y button

The Lochness Monster:
This isn't really a cheat just something to do to find nessi go to the ocean at glitter oasis go in the water just drive until you see a giant bulge and that should be it. P.S. i suggest you put it on ten minutes so you can look and drive around